Self-oiling vehicle-spring



E. I. IACKSON.

SELF 0|L|NG VEHICLE SPRING.

APPLICATION |LD MAR. ll. |918. RENEWED Dic. 9,1919.

gwn pw.

Patented June 15, 1920.

Erlebe/(son.

UNITED STATES PATENT OFFICE.

SELF-GEDING VEHICLE-SPRING.

' specification of Letters Patent.

Patented June 15, 1920.

Application med March 11, 191B, Serial llo. 821.789. Renewed December 9, 1919. Schal No. 343,648.

To all whom it may concern.'

Be it known that I, EDWARD J .A JnoKsoN, a citizen of the United States, residing at Willcox, in the county of Cochise, State of Arizona, have invented certain new and -usefnl Improvements in Self-Oiling Vehicle- Springs; and I do hereby declare the f ollowing to be a full, clear, and exact description of the invention, such as. will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements 1n springs and particularly to vehiclespi'ings. One object of the present invention is rovide a novel and efficient means for oiling the laminated steel springs used on automobiles, wagons, and like vehicles.

Another object of the invention is to provide a spring made up of a plurality of leaves each of which is formed to receive and distribute oil to all of the frictionally contacting parts thereof.

Other objects and advantages will be apparent from the following description when taken in connection with the accompanyin drawing.

In the drawing:

Figure 1 is a front elevation ,ofen elliptical vehicle spring made in accordance with my invention.

Fig. 2 is an end view of the same.

Fig. 3 is an ,enlarged vertical sectional view taken onthe line 3-3 of Fig. 1.

Fig. 4 is an enlarged vertical longitudinal sectional view taken on the line 4 4 of Fig. 2.

Referring particularlg to the accompanying drawing, A and represent, respectively the per and lower halves of the elliptical ve icle spring. In the u per half A, 10 represents a plurality of o 'tudinally arched and superim osed eaves. Formed vertically through t e centers of the leaves are the openings 1l, and dis osed through these openings is a bolt 12. n the upper face of each of the two lower leaves of the section or halfrA ofthe spi-in and extending longitudinally and central ythereof, is a groove 13, the same being comparativel wide at its center-,and tapering toward bot ends. Centrally in the bottoms o f the grooves 13 of the said two lower leaves, and extending lon 'tudinally thereof, are the grooves 14. ormed in the opposite sides ofv the bolt 12, and extending longitudinally thereof, are the grooves 15 for conably engaged on the upper or threaded end vof the bolt. The sides of ,the leaves 10 are beveled as shown.

The lower member of the spring, includes three superimposedleaves 17, 18, and 19, respectively. The sides or longer edges of the lower faces of the leaves 17 and 18 are beveled, as shown at 20, and rest against the correspondingly beveled inner faces of the vertical sideanges 21 formed on the intermediate portions of the sides of the leaves 18 and 19. Thus the leaves are held in proper position for longitudinal slidable movement with respect to each other but are prevented from lateral or sidewise movement. It will be noted that these flanges 21 terminate at the ends of the leaves on which th are formed.

bolt 22 is 'disposed vertically through the centers of the leaves 17, 18, and 19, and also has the oil conveying grooves 23, for delivering oil-from the oil cup 24 to the grooves 25, formed in the upper faces of the leaves 18 and 19.

O11 each of the bolts 12 and 22, between the oil cups and the uppermost of the leaves of the upper and lower sections A and B, are enga ed the washer plates 26, gaskets 26', and t e clamping nuts 27. On tlie bolts, between the lowermost leaves and the heads of the bolts, are disposed the washer plates 28 and the gaskets 29.

lt will be noted that the grooves of the bolts are disposed in positions to deliver oil to the inner or central portions of the grooves of the leaves, the grooves of the bolts extendin upwardly into the cups, so that the oil will properly How therethrough.

It will also be noted that the beveled edges of the leaves, where they engage with the beveled faces of the leaves next below, are supported at such a height that a space is formed between each air of leaves for the reception of the oil, t us permitting the oil to spread out and properly and ell'ectivel lubricate the dilerent leaves, whereby tlie free and eicient operation of the leaves is assured.

The showing of the bolts and' oil cups is to an exaggeration for purpose of clear ness in the resentation thereof. The device, when p aced on the market, will have considerably smaller bolts and oil cu s so that the upper and lower sections o the sprin can move toward end away from each other without interference of the inner or lower cu 24.

There is thus provided a vehicle spring wherein the oiing is automatic and e'ective.

What is claimed is:

1I Vehieiei'spring incilu'li' a, ilurality pf superimposed leeves ea enve: being formedmtvitli' i Vterfitisi'ng y Ieveled. marginal portions,`s'ad elanve's e'xeept the uppermost 5116 bins implied with, loiwdmel central groovesvhicyh `nre wide t t 'ir central p m'- ti'QiiS 'und @reviewers istie f-nlfis, @il 'ef t le'avesbeing former] ,wi hf'entrel vertical y oil cp. 0` heb erevi eine @Fripes .arranged in tion to deliver 'oi to" e grooves o the leeres! 2'. A vehice sprin including superlmn short of the ends thereof, `the siie end end walls of which groove are rin'v'vxard y beveled' eee superimposed leef heving its side anni edges Beveled to enga e with said beveled we 1s, each' subi'mpose leajflinvn'g also a iongitudiiel' oppos'lteljy teperin groove therein 4in'the bottom of its first lies'eiibed groove, and means for conveyi' llibrients through 4the 'alining openings o? the leaves tothe grooves.

3. A vehicle Vsprin including mutually en a ed leiive's, one o seid leaves being prv er? witha roove, the s'ideand endl wells of "which are ieveieei to converge inwerdiy the other of l'igleeves havin "its side' en eiid edges' bve'ed eorrespon'ingly to tile groove wells, and enge ed therewith, an'd meeris for 'conveying' `ubrieants to the grooves.

In testimony whereof, I aix my signature in the presence of two witnesses.

EQWARD J. JACKSON.

Vit esses:

Amps MoKAY, RUBYF. ERQgMANN. 

